ACKING message when pulling a config

[IPmonkey]

Anybody know what Acking xxx (xxx = a numeric code) means when using manager to pull a config.
I have seen this in bottom bar of the manager on a few different pc's recently.

 

[intrigrant]

I do not know what it means but i have seen it only on slow networks or on dial-up connections.
I think there are packets malformed and have to be retransmitted by the IP Office.

 

[VOiDDude]

Ack messages are used in TFTP transfers. Every packet a sender (IPO) sends will be ACKnowledged by the receiver (Manager) who sends a ACK message with the sequence number of the packet he just received to the sender.

If the receiver don't receives the next packet within a predefined timeout he will re ACK the last packet received so the sender knows he need to resend the packet.

So in case of the manager this means he missed a packet from the IPO and resends the last ACK. This can be due to various reasons (corruption, collision, long delays, firewalls,...).